At Denver International Airport, 81% of recent flights have arrived on time. A sample of 12 flights is studied. Round the probabilities to at least four decimal places. ) It would be unusual for 11 or more of the flights to be on time since the probability is what?
Unitary Method
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At Denver International Airport, 81% of recent flights have arrived on time. A sample of 12 flights is studied. Round the probabilities to at least four decimal places. ) It would be unusual for 11 or more of the flights to be on time since the probability is what?
Given p = 0.81, n = 12
X ~ B(n, p)
= 0.2245 + 0.0797
= 0.3042
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